Delphi:Create() 构造函数末尾的访问冲突 [英] Delphi: Access Violation at the end of Create() constructor

问题描述

我有一个非常基本和简单的类，如下所示:

I have a very basic and simple class like this:

单元加载器；

interface

uses
  Vcl.Dialogs;

type
  TLoader = Class(TObject)
  published
      constructor Create();
  end;

implementation

{ TLoader }    
constructor TLoader.Create;
begin
   ShowMessage('ok');

end;

end.

从 Form1 开始，我这样称呼它:

And from Form1 i call it like this:

procedure TForm1.Button1Click(Sender: TObject);
var
 the : TLoader;
begin
  the := the.Create;
end;

现在，就在 the := the.Create 部分之后，delphi 显示带有 'ok' 的消息，然后给我一个错误并说 ProjectProject1.exe 引发异常类 $C0000005，并带有消息0x0040559d 处的访问冲突:读取地址 0xffffffe4".

Now, just after the the := the.Create part, delphi shows the message with 'ok' and then gives me an error and says Project Project1.exe raised exception class $C0000005 with message 'access violation at 0x0040559d: read of address 0xffffffe4'.

它也显示了这一行:

constructor TLoader.Create;
begin
   ShowMessage('ok');

end; // <-------- THIS LINE IS MARKED AFTER THE ERROR.

我是德尔福的新手.我正在使用 Delphi XE2，但无法修复此错误.有没有人告诉我路径或有解决方案?

I am new at delphi. I am using Delphi XE2 and i couldnt manage to fix this error. Does anyone show me a path or have solution for this?

推荐答案

var
  the : TLoader;
begin
  the := the.Create;

不正确.应该是

var
  the : TLoader;
begin
  the := TLoader.Create;

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